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Finding the Fourth Proportional to 668,571.15, 1,002,858.90 and 169,935.15

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Solution

The fourth proportional to 668,571.15, 1,002,858.90 and 169,935.15 is: 254,903.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,571.15 : 1,002,858.90 = 169,935.15 : x
  2. Step 2: Convert to fraction form
    668,571.15/1,002,858.90 = 169,935.15/x
  3. Step 3: Cross multiply
    668,571.15x = 1,002,858.90 × 169,935.15
  4. Step 4: Simplify right side
    668,571.15x = 170,420,977,600.34
  5. Step 5: Solve for x
    x = 170,420,977,600.34/668,571.15
  6. Step 6: Final answer
    x = 254,903.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.